NCTHAI
Electrical
- Nov 26, 2007
- 98
Dear All,
We are doing the M-Pact (Old one - GEC ALSTOM manufactured, not GE manufactured) CBs refurbishment and understand that the MPro relays were supplied with CTs installed on these breaker mounting. The CTs are Rogowski type (flexible type). I cannot find any details of these CTs.
Does anyone have any experience for these CBs and CTs installed on breaker? What are the CTs specifications? Ratio i can guess that it will be of the rated current of CB but other specifications are not easy to estimate.
Has any one carried out any refurbishment of these CBs? Please share the experience if you have.
Regards,
NC
We are doing the M-Pact (Old one - GEC ALSTOM manufactured, not GE manufactured) CBs refurbishment and understand that the MPro relays were supplied with CTs installed on these breaker mounting. The CTs are Rogowski type (flexible type). I cannot find any details of these CTs.
Does anyone have any experience for these CBs and CTs installed on breaker? What are the CTs specifications? Ratio i can guess that it will be of the rated current of CB but other specifications are not easy to estimate.
Has any one carried out any refurbishment of these CBs? Please share the experience if you have.
Regards,
NC
